AD7277(RevC) Просмотр технического описания (PDF) - Analog Devices

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AD7277
(Rev.:RevC)

3 MSPS, 12-/10-/8-Bit ADCs in 6-Lead TSOT

Analog Devices 

AD7276/AD7277/AD7278

TABLE OF CONTENTS

Features .............................................................................................. 1

General Description ......................................................................... 1

Functional Block Diagram .............................................................. 1

Product Highlights ........................................................................... 1

Revision History ............................................................................... 2

Specifications..................................................................................... 3

AD7276 Specifications................................................................. 3

AD7277 Specifications................................................................. 5

AD7278 Specifications................................................................. 7

Timing Specifications—AD7276/AD7277/AD7278 ............... 8

Timing Examples........................................................................ 10

Absolute Maximum Ratings.......................................................... 11

ESD Caution................................................................................ 11

Pin Configurations and Function Descriptions ......................... 12

Typical Performance Characteristics ........................................... 13

Terminology .................................................................................... 15

REVISION HISTORY

5/11—Rev. B to Rev. C

Changes to Figure 21...................................................................... 16

Changes to Ordering Guide .......................................................... 27

Changes to Endnote 5 .................................................................... 27

11/09—Rev. A to Rev. B

Changes to Table 2............................................................................ 3

Changes to Table 3............................................................................ 5

Changes to Table 4............................................................................ 7

Changes to Ordering Guide .......................................................... 27

10/05—Rev. 0 to Rev. A

Updated Format..................................................................Universal

Changes to Table 2............................................................................ 3

Changes to Table 5............................................................................ 8

Changes to the Partial Power-Down Mode Section .................. 18

Changes to the Power vs. Throughput Rate Section.................. 21

Updated Outline Dimensions ....................................................... 26

Changes to Ordering Guide .......................................................... 26

7/05—Revision 0: Initial Version

Theory of Operation ...................................................................... 16

Circuit Information.................................................................... 16

Converter Operation.................................................................. 16

ADC Transfer Function............................................................. 16

Typical Connection Diagram ................................................... 16

Modes of Operation ................................................................... 18

Power vs. Throughput Rate....................................................... 21

Serial Interface ................................................................................ 22

AD7278 in a 10 SCLK Cycle Serial Interface.......................... 24

Microprocessor Interfacing....................................................... 24

Application Hints ........................................................................... 25

Grounding and Layout .............................................................. 25

Evaluating Performance.............................................................. 25

Outline Dimensions ....................................................................... 26

Ordering Guide .......................................................................... 27

Rev. C | Page 2 of 28

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